I've just come across a two-page duplicated programme for the Cleethorpes Folk Festival. The cost of a 3-day ticket was thirty shillings (£1.50). On Saturday the 23rd of May there was a 'Musician's Session' with Robin and Barry Dransfield; a Festival Barn Dance with Ken Clark, The Yetties and Folkweave; a concert in the Pier Pavilion Hall with The High Level Ranters; Ray and Archie Fisher, The Broadside, Monkseaton Morris and Frank Roddy.
The trouble is - it's not dated.
Anyone care to guess when it might have been - pre-decimalisation, obviously.